Your SUV has three belts that help parts move. The first is the timing belt, which is a notched belt that coordinates the movement of your crankshaft and camshaft. That keeps the valves and pistons operating in sync with one another and producing the efficient power you want. If it breaks, you'll know almost immediately as your engine will stop running as a safety precaution.

The other two types of belts are serpentine belts and drive belts. Serpentine belts work with a tensioner, idler pulley, and crank pulley to move parts such as the power steering and alternator. Drive belts run off your crank pulley and help move the radiator fan, water pump, and other parts. Typically, you’re able to drive for a while if one of these belts fails, so you have a chance to replace it before serious problems start up.

Hoses 101

Hoses direct fluid between parts, lubricating or cooling as needed. For example, your radiator sends coolant to the engine, where it collects the building heat before returning to the radiator.

How to Recognize Problems With Your Belts and Hoses

You should check your belts and hoses regularly for signs of trouble. They include:

Belts that are slack or loose

Belts that are too tight

Cracked hose material

Fraying belt material

Puddles of liquid under your SUV

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